Horace wyman



(No Model.)

E. WYMAN.v DRIVING MBGHANISM POR LooMs.

110. 423,103. Patented 11am. 11, 18911.

mwmoz 60o/Lac@ 351g' @Hom/1m30 UNITED STATES PATENT OFFICE.

' HORACE IVYMAN, OE VORCESTER, MASSACHUSETTS, ASSIGNOR TO THE OROMPTONLOOM VORKS, OF SAME PLACE.

DRIVING MECHANISM FOR LOOMS,

SPECIFICATION forming part 0f Letters Patent N0. 423,103, dated March11, 1890. Application filed May l, 1889. Serial No. 309,226. No model.)

To all whom it may concern:

Be it known that I, HORACE W'YMAN, a citizen of the United States,residing at I/Vorcester, in the county of Vorcester and Commonwealth ofMassachusetts, have invented certain new and useful Improvements in theDriving Mechanism for Looms; and I do hereby declare the following to bea full, clear, and exact description of my invention, such as willenable others skilled in the art to which it appertains to make and'usethe same.

My invention relates to the class of looms operated by power transmittedfrom a main driving-shaft to a cross driven shaft and thence to acrank-shaft, and has for its object to provide a means of quicklychanging the driving-gear so as to vary the relative speed of the crossdriven shaft. To obtain this I combine with the main shaft and the crossdriven shaft an adjustable frame provided with rigid boxes to supportthe driving-shaft, and thereby I am not only enabled to quickly changethe drivin g-gear and vary the relative speed of the driven shaft, but Ialso secure a firm support for the driving-shaft in the diffication andmake a part thereof, Figure 1 is a side elevation of my inventionattached to a loom-frame, only partially shown. Fig. 2 is a frontelevation. Fig. 3 is a plan view. Fig. 4 is a rear elevation with aportion of the drivin gf-pulleys broken away.

In the drawings like letters refer to simi lar parts.

In the drawings, A represents a loonnfranie, to which are attached thetwo stands B B, each provided with three feet l? b b2, secured by boltsand nuts a, or in any other suitable mann er.

D is an adjustable frame, composed of two side pieces D', connected bythe cross-piece D2. To provide for the adjustment of the said. frame,one end thereof is pivoted to suitable supports or brackets, the otherend being held to other brackets by bolts passing through slots in thebrackets last mentioned and projecting portions of the frame D.

In the embodiment of my invention repre- Sented in the accompanyingdrawings I have pivoted the adjustable frame at its lower side andapplied the bolts referred to at its upper side. Thus in the drawings DsD3 are feet formed at the lower side of the frame D, and E is afulcrum-pin passing through the said feet and fulcrum-hubs ff in thelegs of the stands B B. The crosspiece D2, as is apparent, may beextended so as to coverthe fulcrum-pin. The stands B B are provided withears c c, slotted to receive the bolts d, set into the upper portion offrame D, the bolts being screw-threaded to fit the nuts e, whereby theframe D is secured in any desired position.

The adjustable frame D is fitted with rigid boxes g g, made as a part ofthe frame, to re oeive the drivingshaft E. On one end of the shaftsuitable driving-pulleys h 7L may be arranged, and on the other end thepinion E is fitted to engage the bevel-gear G on the driven shaft t',which in turn engages the gear H on the crank-shaft j. The gear H isproperly the same size as the bevel-gear G.

When it is desired to put apinion in place,v

the nuts e on the bolts d are loosened, so as to permit the adjustablelframe to be moved outwardly on the fulcrum, the gear F is secured tothe shaft, the frame is pressed inward until the teeth of the gear Fproperly engage the teeth of the bevel-gear G, and the nuts e on thebolts d are tightened sufciently to hold the adjustable frame rigidly inplace.

Upon necessity requiring a change in the speed of the loom, theadjustable frame is loosened and pressed outward, as before, a suitablepinion is substituted for the one on the shaft, the frame is pressedback so that the gears F and G properly engage, the nuts on the boltsmoving in the slots are tightened, and the loom is ready to be started.

It is readily seen that this may be very quickly done. As the sides ofthe adjustable frame D are rigidly connected by the cross-piece D2, itis apparent that the boxes being properly bored in the frame and theshaft E being properly hung the shaft cannot get out of IOO alignment,as it is made to assumethe different positions before described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with a cross-shaft havthrough slots in the saidadjustable frame and the supporting-stands and serving to hold the framein adjusted position, as and for the purposes described.

2. The combination, with across-shaft having a gear. thereon, adriving-shaft having a gear in engagement with the gear on thecross-shaft, and supporting-stands, of an adjustable frame composed oftwo side pieces connected by a cross-piece and provided with rigid boxesfor said driving-shaft made integrally With it, one end of the saidframebeing pivoted to the said supporting-stands, and bolts passingthrough slots in the said adj ustable frame and the supporting-standsand serving to hold the frame in adjusted position, as and for thepurposes described.

3. The combination of the loom frame, stands secured thereto, the maindrivingend of the side pieces of the adjustable frame turning on afulcruIn-pin and the other end secured by bolts fitted to be moved inslots to the said stands, as and for the purposesy described.

4. The combination, With the loom-frame,

. a cross-shaft havinga gear thereon in engagement with the gear on thecross-shaft, two supporting-stands, each provided with three feet forthe lpurpose of attaching the stands firmly to the loom-frame and theiioor, and fastening-bolts, of an adjustable frame provided With rigidboxes for said driving-shaft made integrally with it, one end of thesaid frame being pivoted to the said supporting stands, and boltspassing through slots in the said adjustable frame and thesupportingstands and serving to hold the frame in adjusted position, asand for the purposes described.

In testimony whereof I have hereunto set my name, in the presence of twowitnesses, this 25th day of April, 1839.

HORACE WYMAN.

Witnesses:

HENRY W. KING, M. L. POTTER.

